Printer&#39;s ink and in the process of manufacturing same



Patented May 24, 1932 i r mn'rrnras nonwreseimon srocKHoLM, swEnEnramrnns 1m: AND n rnnrnocnssonMAnUraorURIiTG SAME.

No Drawing. Application filed September 24;, 1928; Seria1;No. 308,125.Renewed oetoberr, 1931.."

This invention relates to new and' usefu'l improvements 1n prmters mkand 111 colors relevant to'the former, incidentally identifying theprocess of manufacturing those with, r

the results obtained.

Thus this new process has provide a printers ink, which has the advantage of being cheaper to manufacture than any of those so far known andalso considerably better, one of the reasons therefor bein that the saidprinters ink, as here devised, is f presenting an agent of-aconsiderable short substance or consistency, which is especiallyadaptable in producing arsharp, clear impression, a feature found veryvaluable when cuts and other printing devices are used.

A part of my discovery resides primarily in the use ofwaste-sulphite-liquoras a connecting medium for the ingredients,"whichmay be varied as to the colors and proportions, comprising the saidprinters ink.

The said waste-sulphite-liquor will fully replace those resins or gumsusedespecially in the more expensive inks or compositions at the sametime permitting the manufacture thereof at a normal temperature, that iswithout resorting to any bolhng or'heatlng process, a feature whichunquestlonably may be said to be of very great importance, as

this incidentally reduces the cost of manufacturing.

The waste-sulphite-liquor may be concentrated to the desired strengthbyheating and evaporation, whereupon water, alkalis and phosphoric acidare added. The acid and alkali, which may be an alkaline sodium,

potassium, calcium or other similar compound combine to the effect offorming salts which have the advantage of binding the water so that thelatter does not separate or penetrate those rolls that are water absorb:

a hard coating on the rolls or-matrices, when they become hot due to thehigh speed of revolution is also completely" avoided.

' the oils and water added, to it to "make a stable composition, it willagail fseparate,

for'its object to Na CO (lime) while other salts containedtherein fromthe said combinationlandform harddePOSit On the rolls when the latterbecome heatedfl i dium may be composed of especiallysuit abletollscombined with water and-having TheYso ca1led newspaper ink or color me-I added to it coloring ingredients, but. a still betterresult may be:obtained when wastesulphite-liquor is further addedthereto. Inthlsconnection it may be appropriate ,to state, that if the waste-sulphiteliquor is treated with an alkali and phosphoric acid,

atfull, deep, black color may beobtained with lessink or coloringmatter, inasmuch'as I 1 B5 7 oxidize 1n the air assoon'asthe inkhas-been the"waste-s'ulphite-liquor, thus treated, will printed onthepaperand will closely adhere to the latter forming a-q'uickly dryinglayer thereupon which will not come oif. Q

t would be difficult to give an exact formula fo'r'the mixture as thewaste-sulphite-liq j uor mayvary greatly in composition, 'especiallywith regard to its contents'of (sodium carbonate) and 0210 also may beof importance in this regard.

However without resorting to an analysis of the waste-sulphite-liquor,'aformula as the following would in .most. casesbe applicable to produce aprinters ink; a 7

i [1'' Z I .Per cent .WVaste-sulphitediquon 40 to 60 Water '10 to 20Alkalis 2110 4 -Phosphoric acid; l Y lto -6 Coloringmaterials 6 to .7 a2011s.; 3811045 T0 :provide a newspaper. ink or coloringv medium fromoils, waterjand coloring ma- Per cent terials solely, the mixture inust,contain the 9 cm, i. e. those made of stearin, glycerine and g' c q t iI V V glue. Separation of water OI' dGPOSItlO IYOf:

added. The gloss or lustre of the color may be increased by adding to ita solution of sodium or potassium bichromate; the said solution may beapplied in amounts up to A 5 of the mixture. 1

e The phosphoric acid called for by the formula will combine with thealkali, or more V specifically, the NaOI-I will combine 'With the PO Hto form Na HPO injthecolor 1o mixture. As a coloring medium may be" usedcarbon black, ni 'rosine, aniline black or similar related ink coloringmaterials or dyes.

However, it Will be to the advantage, with respectto the printers-ink,or color-medium containing Waste-sulphite-liquor, to use hydroxide ofiron, precipitated from FeSO by means of alkali in the usual manner.

It is obvious that changes may be made in r the arrangement andcombination of thedif- 2o ferent matters and ingredients, as defined 7Within the scope of the appended'claims, and r Y I do not thereforelimit myself to the statements and definitions set forth and described aherein. I V

' l/Vhat I claim as neWand desire to secure by Letters Patent of theUnit-ed States, is:

1. A printing ink, having a vehicle formed by combining Waste sulphiteliquor, alkali,

and phosphoric acid together.

2. A printing ink having a Vehicle consisting of an emulsionformed bycombining Waste sulphite liquor, alkali, phosphoric acid, and an oil inthe presence of Water together. r r p 3. A printing ink having a vehicleconsist ing of an emulsion formed by combining Waste sulphite liquor,alkali, phosphoric acid, and an oil in the presence of water to gether,and a coloring material.

. 4.0 4. A printing ink having a vehicle consisting of an emulsionformed by combining to 60% waste sulphite liquor, 2 to 4% alkali, 4

to 6% phosphoric acid, and 38 to of an oil in the presence of 1O to20%of Water 45 together.

5. A printing ink havinga vehicle consisting ofran emulsion formed bycombining 40 to 60% waste sulphite liquor,-2 to 41% alkali, & to 6%phosphoric acid, and38 to 1:57 of an oil in the presence of 10zto 20% ofWater together, and about 6 to 7% of a'coloring' mate-rial. i I-Signed'at New York city, inthe county of New York and State of NewYork, this 21st day of SeptembenA. D. 1928.

' V MATTHIAS LUDWIGSEN.

